Here is my problem, my tranny seems to work great all the way through overdrive, but when it goes into lockup I have to let off of the throttle or it will start shuttering. Is this a problem with the converter or the tranny.

 

I had the same problem running extra Horsepower, I had the shuddering when running with torque management off with low end power. Eventually my input shaft broke....and the TC started to slip. Have a Goerend tranny now. Problem solved.

 

Goerend here too! There is no one else in my book. Anyone else that has a chance to deal with Dave will agree.

 

here we go everyone tryin to sell what they got. lol but id go with HTS.
www.htstransmissions.com